Abstract
The emergence of bone as an endocrine regulator has prompted a re-evaluation of the role of bone mineralization factors in the development of metabolic disease. Ectonucleotide pyrophosphatase/phosphodiesterase-1 (NPP1) controls bone mineralization through the generation of pyrophosphate, and levels of NPP1 are elevated both in dermal fibroblast cultures and muscle of individuals with insulin resistance. We investigated the metabolic phenotype associated with impaired bone metabolism in mice lacking the gene that encodes NPP1 (Enpp1(-/-) mice). Enpp1(-/-) mice exhibited mildly improved glucose homeostasis on a normal diet but showed a pronounced resistance to obesity and insulin resistance in response to chronic high-fat feeding. Enpp1(-/-) mice had increased levels of the insulin-sensitizing bone-derived hormone osteocalcin but unchanged insulin signalling within osteoblasts. A fuller understanding of the pathways of NPP1 could inform the development of novel therapeutic strategies for treating insulin resistance.
| Original language | English |
|---|---|
| Pages (from-to) | 1341-50 |
| Number of pages | 10 |
| Journal | Disease Models & Mechanisms |
| Volume | 7 |
| Issue number | 12 |
| DOIs | |
| Publication status | Published - 5 Dec 2014 |
| Externally published | Yes |
UN SDGs
This output contributes to the following UN Sustainable Development Goals (SDGs)
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SDG 3 Good Health and Well-being
Keywords
- Animals
- Bone Remodeling
- Bone and Bones
- Diabetes Mellitus
- Disease Models, Animal
- Fibroblasts
- Gene Deletion
- Glucose
- Homeostasis
- Hydrolysis
- Insulin
- Insulin Resistance
- Male
- Mice
- Mice, Knockout
- Obesity
- Osteoblasts
- Osteocalcin
- Phenotype
- Phosphoric Diester Hydrolases
- Pyrophosphatases
- Signal Transduction
- Journal Article
- Research Support, Non-U.S. Gov't
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